To ensure the scientific credibility of the experiment, ground models of the hardware and cells are prepared. They will be treated the same way as the cells aboard the ISS. Today the team changed the medium in the ground models and were instructed in how to initiate the computer program on earth at the same time as on the ISS.

With a perfect view for the launch as part of a VIP delegation we heard the sad news just one hour before launch. Suddenly everyone turned to their phones and the countdown was stopped. Launch is postponed! I have no words! The pics talk for themselves, I think.